| dc.description | The topic is hybrid sunflowers with greater uniformity and higher yields. Hybrid sunflowers displayed a distinct yield advantages over open-pollinated varieties, hybrids had not been grown commercially in the United States because of high labor costs involved in producing the seed and difficulty in obtaining
seed that would be 100 % hybrid. This article presents performance data on high-oil sunflower hybrids as compared to open-pollinated varieties grown in North Dakota in 1972. In summary, the authors stated, "Hybrid sunflower varieties had significantly higher yields and greater uniformity for rust reaction, flowering, height, head size and per cent seed oil than open-pollinated varieties. As a result of improved methods of seed production, hybrids can now be produced for commercial production." | |
